/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2015 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.jpos.iso;

import org.jdom.JDOMException;
import org.jpos.util.FSDMsg;

import java.io.*;
import java.util.Iterator;
import java.util.Map;

public class FSDISOMsg extends ISOMsg implements Cloneable {
	FSDMsg fsd;

	public FSDISOMsg() {
		super();
	}

	public FSDISOMsg(FSDMsg fsd) {
		super();
		this.fsd = fsd;
	}

	public String getMTI() {
		return getString(0);
	}

	public byte[] pack() throws ISOException {
		try {
			return fsd.packToBytes();
		} catch (Exception e) {
			throw new ISOException(e);
		}
	}

	public int unpack(byte[] b) throws ISOException {
		try {
			fsd.unpack(b);
			return b.length;
		} catch (Exception e) {
			throw new ISOException(e);
		}
	}

	public void unpack(InputStream in) throws IOException, ISOException {
		synchronized (this) {
			try {
				fsd.unpack(in);
			} catch (JDOMException e) {
				throw new ISOException(e);
			}
		}
	}

	public FSDMsg getFSDMsg() {
		return fsd;
	}

	public String getString(int fldno) {
		return fsd.get(Integer.toString(fldno));
	}

	public String getString(String fld) {
		return fsd.get(fld);
	}

	public boolean hasField(int fldno) {
		return getString(fldno) != null;
	}

	public boolean hasField(String fld) {
		return getString(fld) != null;
	}

	public void dump(PrintStream p, String indent) {
		if (fsd != null)
			fsd.dump(p, indent);
	}

	public void writeExternal(ObjectOutput out) throws IOException {
		out.writeByte(0);  // reserved for future expansion (version id)
		out.writeUTF(fsd.getBasePath());
		out.writeUTF(fsd.getBaseSchema());
		out.writeObject(fsd.getMap());
	}

	public void readExternal(ObjectInput in)
			throws IOException, ClassNotFoundException {
		in.readByte();  // ignore version for now
		String basePath = in.readUTF();
		String baseSchema = in.readUTF();
		fsd = new FSDMsg(basePath, baseSchema);
		Map map = (Map) in.readObject();
		Iterator iter = map.entrySet().iterator();
		while (iter.hasNext()) {
			Map.Entry entry = (Map.Entry) iter.next();
			fsd.set((String) entry.getKey(), (String) entry.getValue());
		}
	}

	public Object clone() {
		FSDISOMsg m = (FSDISOMsg) super.clone();
		m.fsd = (FSDMsg) fsd.clone();
		return m;
	}

	public Object clone(int[] fields) {
		FSDISOMsg m = (FSDISOMsg) super.clone();
		m.fsd = new FSDMsg(fsd.getBasePath(), fsd.getBaseSchema());
		for (int field : fields) {
			String f = Integer.toString(field);
			m.fsd.set(f, fsd.get(f));
		}
		return m;
	}

	public void merge(ISOMsg m) {
		if (m instanceof FSDISOMsg) {
			fsd.merge(((FSDISOMsg) m).getFSDMsg());
		} else {
			for (int i = 0; i <= m.getMaxField(); i++) {
				if (m.hasField(i))
					fsd.set(Integer.toString(i), m.getString(i));
			}
		}
	}

	public void setResponseMTI() {
		try {
			super.setResponseMTI();
		} catch (ISOException ignored) {
		}
	}

	public void set(String name, String value) {
		if (value != null)
			this.fsd.set(name, value);
	}

	private static final long serialVersionUID = 1L;
}

